Market Guide: HSAC Top Institutional Holders Rank Institutional Name Report Date Position 1 GILDER, GAGNON, HOWE & CO. 09/30/99 2,405,985 2 ZWEIG-DIMENNA PARTNERS, L.P. 09/30/99 583,700 3 ESSEX INVESTMENT MANAGEMENT CO INC 09/30/99 463,160 4 DRESDNER RCM GLOBAL INVESTORS LLC 09/30/99 352,100 5 PROVIDENT INVESTMENT COUNSEL INC 06/30/99 222,100 6 ING BARING FURMAN SELZ LLC 06/30/99 210,000 7 BAMCO INC. 09/30/99 200,000 8 FRANKLIN RESOURCES, INC 09/30/99 186,800 9 VANGUARD GROUP, INC. (THE) 09/30/99 140,600 10 OPPENHEIMERFUNDS, INC. 09/30/99 124,800 |